Lighting fixture



W. E. COCHRAN LIGHTING FIXTURE Original Filed June 1 1920 Patented May 1, 1923.

UNITED STATES WESLEY E. COGHRAN, OFCLEVELAND, OHIO.

LIGHTING FIXTURE.

Application filed June 1, 1920, Serial No. 385,417.

T 0 all whom it may concern:

Be it known that I, l/Vnsnnr E. COCHRAN, a citizen of the United States, residing. at Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Lighting Fixtures, of which the following is a specification.

My invention relates to improvements in lighting fixtures, and more particularly to that class or type known as indirect lighting fixtures, the present embodiment of the invention being also particularly designed and adapted for use as a pendant or suspensory lighting fixture.

The primary object of the invention is the provision of a generally improved fixture of this class which will be exceedingly simple in construction, cheap of manufacture, and efficient in use.

A further and very important object of the invention is the provision of a more efficient fixture of this class which will not only increase the illuminating power of the fixture as a whole, but which will provide a field of illumination of great uniformity thruout, and particularly free of. glare, shadows, and other objectionable features.

A still further object is the provision of a pendant fixture in which the parts may be readily assembled and disassembled lncidental to the inspection, cleaning or repair, or removal of parts, and whereby the same may be done without removal from the sus pending or hanger device.

A still further object is the provision of improved light diflusing reflecting and canopy members disposed and arranged in an improved manner relative to each other, and particularly adapted to co-operate with a lamp bulb of the nitrogen type adapted not only to provide a proper circulation of air about the lamp bulb to cool and prolong the life of the latter, but providing a fixture which is particularly sanitary and safe in use, free from dust collecting openings or pockets, and at the same time presentin an ornamental and attractive outline and artistic appearance.

A still further object is the provision of an'improved ventilated canopy or top cover of suitable non-transparent. material arran ed above the main reflector, together wit an improved light emitting or diffusing centrally located socket shade ada ted, in the present instance, to support t e lamp Renewed September 27, 1922. Serial No. 591,001.

With the above mentioned and other ends in view, the invention consists in the novel construction, arrangement, and combination of parts, illustrated in one of its embodiments in the accompanying drawings, and particularly pointed out in the appended claims.

Referring tothe drawings, forming a part of this specification, the figure shown is a view, partly in side elevation and partly in central vertical section, of the lighting fixture constructed in accordance with this invention. 1

Similar numerals of reference designate like parts thruout all the figures of the drawings.

The improved lighting fixture comprises a bowl-supporting or holder ring, 1, adapted to be supported in any suitable and con venient manner, 'the improved fixture, in the present instance, being of the pendant or suspensory type, suitable hangers, 2, are provided, such hangers, in the present instance, comprising chain members connected to a ceiling plate, 3, provided with hooks, 3, the lower ends of the hangers being connected to hooks, 1", on the bowl-supporting or holder ring, 1.

As a convenient means of inserting and removing the light difl'using reflector and canopy members without detaching the supporting or holder member, 1, from the ban ers when the fixture is hung up or installed, the light diifusing shade or bowl, 1, of suit able translucent material is provided with a suitable outwardly projecting rim or beading, 4?, and as a convenient means offormin a seat for the latter the inner periphery o the holder ring, 1, is provided with a suitable flange or'beading, 1", as shown.

The reflector, 5, is adapted to be mounted above the bowl, 4, and is adapted to receive and reflect thelight rays emanating from the filament of the incandescent'light bulb or source of illumination.

As a means of adapting the reflector, 5, to a lamp bulb of the nitrogen type, and also adapting the same to co-operate with the other parts as hereinafter described, the reflector, 5, is provided with a central open. ing, 5*, adapted to receive and eontainthe elongated neck or "stem portion, 6 of the lamp bulb, 6Q Asa means ofproviding a circulating air space about the bulb, the opening 5" is preferabIy Sufiiciently large to form an annular circulation space, 5*.

As a means of readily removing the reflector, 5, when the superposed parts are removed orelevated as hereinafter described, and without disturbing the holder ring, 1, and hanger members,2, the reflector, 5, is removably mounted above the diffusing bowl, 4, and in thepresent instance, is mounted on the upperformarginal edges of the bowl, 4:, the improved'refiector, 5, being preferably of annular concavo-convex shape between the opening, 5*, and the marginal edges to better distribute and reflect the light rays thru the subjacent bowl, 4, and as received from the-sourceof light or filament.

As ameans of protecting the interior parts as well as providing an air circulating space, aswell as a'lso providing a convenient sup port for the improved centrally located light diffusin'g'socket shade and the lamp socket and lamp bulb carried thereby, a nontransparent ventilated canopy or top cover, 7, is provided, said canopy or cover 7 'being removablyunounted on* the holder ring, 1, and being preferably provided about the marginal edges with a depending rim, 7*, adapted to surroundthe upwardly extending of the ring and lamp fixture parts. The canopy or cover; 7, is providedwith a plurality o'f'ven-tila-ting openings, 7 arranged in circular form and is provided about its inner periphery with a flange,'7=, adapted to receive andforma convenient support for the lower marginal edges of the improved light emitting or diffusing socket cover'or shade, 8.

As a meansjof removabl-y securing the marginal edges of the light diffusing shade, as well as protecting the ventilating openjings or aircirculatingpassages, 7 from dirt and other foreign substances, a securing ring, 9,. is provided, said securing ring be provided with an outwardly extending skirt portion extending over the openings or "holes, 7 and being removably'secured' by means of fastening elements, 9

The cover or shade, 8, is preferably formed of suitable translucent or lightdiffusing material similar to the bowl, 4', and extends upwardly terminating in a central opening adapte'd to receive and contain the supportif'or the :lamp socket, said support, in the present instanceycomprising a tubular 'stemfionsha-nk forming a cord stem leading vto the-socket; 1l, for supporting the lamp bulb. Thecord stem, or socket shank is adaptechto-be removably secured 'bymeans of aconnectlngknob, 12, having a suitable cordvreceiving opening and suitably threador shade, 8, may be removed by detachment of the fasteningelements, 9, and holder ring, 9, and if desired-the bulb maybereadily detached from the socket, 11.

It will also be observed that the canopy or cover, 7 is spaced above the reflector, 5, and conjointly with the-latter and the surrounding holding ring, 1, formsa space above the reflector, 5, receiving rays of light from the neck of the bulb which are ordinarily lost,

such light being adapted in alargeway to pass outwardly thru and to bediffused by the sacketcovr orshade, 8.

Having thus described one of the embodiments of my invention; without having attempted to set forth all the forms in: which it may. be made, or all 'the-modes of its use,

i what Iclaim and desire to secureby Letters IlIIl' port on of' the holder orsupportin'g ring, 1; and ei'r'clude dust from the interior Patent, is,

1. A lighting fi xture comprising a holder ring, a light' diflusingbowlthereon', asuspending device for saidring, a ventillated canopy 'detachably connected to said ring, a light diffusing shade detachabl'y mounted on said canopy and projecting'upwardlyutherefrom-,- a' tubular cord stem terminating in a lamp socket, means for detachably connectingsaidcord ste'm to said light diffusing shade, a lamp bu lb extending within said light diffusing bowl, and a reflector above and closing said bowl and having an opening containing-said lamp bu lb and reflecting the light rays thru 'said bowl.

2. A- lighting'fixtnre, comprisingwa suspensory ring, suspensory chains therefor, a light diffusing bowl carried-byvsaidiring, a reflector above said bowl, a canopy cover removably' carried. "by said ring," a light emitting socket shade detachably connected to I saidcanopy cover, a lamp socket on said socket shadeabove said reflector, and an electric lamp bulb in said socket extending thru said reflector and= having its filament within said bowl, andthe shank. portion thereof extending between said socketshade and canopy coverandithe saidrrefle'ctors 3; A lighting'fixture, comprising-"apendantbowl'sup'porting holder, a light diffusing bow1 carried thereby, a ventillated: canopy on said holder, a light di'fi'using shade carried-at the center of said canopyrand projecting upwardly abovez-the latter,,,a cord stem removably carried by said diffusing shade of said canopy and terminating in a lamp socket, a lamp bulb in the latter and extending within said light diffusing bowl, and a horizontally disposed reflector having an opening containing said lamp bulb and reflecting the light rays downwardly and outwardly thru said bowl.

4. A lighting fixture, comprising a suspensory ring, suspensory chains therefor, a light diffusing bowl carried by said ring, a reflector above said bowl and within said ring, a ventilated cover carried by said ring above said reflector, a light diffusing socket covering shade carried by said ventilated cover, a lamp socket carried by said socket covering shade above said reflector, and an electric lamp bulb in said socket extending thru said reflector, with its filament below the latter and within said bowl, the shank portion of said bulb extending between said socket shade and ventilated cover and said reflector.

5. A lighting fixture comprising a supporting device carrying a holder ring, a light difl'using bowl, a reflector having a lamp bulb receiving opening mounted above said bowl independently of said ring, an opaque canopy removably mounted on said ring independently of said reflector and suspensory device and carrying a light emitting section, a lamp socket carried by the latter, and a lamp bulb extending thru and adapted to engage with said opening of said reflector when elevated whereby said parts may be removed from or inserted in said supporting ring independent-1v of said suspensory device.

6. A lighting fixture, comprising suspensory members carrying a supporting ring, a light diffusing bowl removably mounted therein, a reflector having a lamp bulb receiving opening removably mounted on and covering said bowl independently of said ring, a ventilated canopy removably mounted on said ring and carrying a central light diffusing section, a lamp socket carried by said section, and a lamp bulb in said bowl extending thru said opening of said reflector into said socket whereby said parts may be removed from or inserted in said supporting ring independently of said suspensory members.

7. In a lighting fixture, the combination with a pendant device, a pendant holder ring carried thereby, and a light diffusing bowl removably mounted therein, of a horizontally arranged reflector having a central lamp bulb receiving opening above said bowl and adapted to project the light rays downwardly thru the latter, a canopy mounted on said ring as a cover to said bowl, a light emitting socket shade carried by said canopy, a lamp socket and electric lamp bulb carried by said light emitting socket shade, the neck portion of said electric lamp extending between said light emitting shade and said reflector whereby light emitted from said neck of said bulb will be permitted to be diffused thru said light emitting cover, said bulb extending below said reflector whereby light will be reflected by the latter through said bowl.

8. In a lighting fixture, the combination with a pendant device, a pendant holder car-\ ried thereby, and a light diffusing bowl removably mounted therein, of a horizontal reflector having a central lamp bulb receiving opening above said bowl and adapted to project the light rays downwardly thru the latter, a canopy removably mounted on said pendant holder as a cover to said reflector and bowl, a light emitting socket shade carried by said canopy, a lamp socket, and an electric lamp bulb carried by said light emitting socket shade, said bulb having its neck portion extending between said light emitting shade and said reflector whereby light emitted from said neck of said bulb will be diflused thru said light emitting cover, the filament of said bulb extending below said reflector and into said bowl whereby light emitted from said filament will be diffused through said bowl.

In testimony whereof I have affixed my signature.

WESLEY E. COCHRAN. 

